package cn.tedu;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Demo03 {
    public static void main(String[] args) throws SQLException {
        //创建一个数据库连接对象  异常抛出
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/empdb?characterEncoding=utf8&serverTimezone=Asia/Shanghai",
                "root","root"
        );
        //创建执行SQL语句的对象
        Statement s = conn.createStatement();
        //执行插入SQL语句
//        s.executeUpdate("insert into emp(name) values('tom')");
        //执行修改SQL语句
//        s.executeUpdate("update emp set name = 'Jerry' where name = 'tom' ");
        //执行删除SQL语句
        s.executeUpdate("delete from emp where name = 'Jerry'");
        System.out.println("执行完成");
        conn.close();

    }
}
